AC TFEL device having blue light emitting thiogallate phosphor
OwnerSey-Shing Sun, Richard T. Tuenge +3inventors
InventorsSey-Shing Sun, Richard T. Tuenge, James Kane, Christopher N. King, P. Niel Yocom
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Abstract
An AC TFEL device includes a front electrode set deposited on a transparent substrate and a rear electrode set, the electrode sets enclosing a thin film laminate which includes a pair of insulating layers sandwiching an alkaline earth thiogallate thin film phosphor doped with a rare earth activator. The thiogallate phosphor layer is capable of producing blue light of sufficient intensity to create a full color TFEL panel.
Claims16
An AC TFEL device comprising a front electrode set deposited on a transparent substrate, a rear electrode set, and a thin film laminate sandwiched between said front and rear electrode sets, said thin film laminate including at least a pair of insulating layers sandwiching a thiogallate phosphor layer having the chemical formula:
- MGa.sub.2 S.sub.4 :RE,
- where M is taken from the group calcium, strontium, zinc or barium, and RE comprises a rare earth activator dopant.
An AC TFEL device comprising a front electrode set deposited on a transparent substrate, a rear electrode set, and a thin film laminate sandwiched between said front and rear electrode sets, said thin film laminate including at least a pair of insulating layers sandwiching a strontium thiogallate phosphor layer doped with cerium.
An AC TFEL device comprising a front electrode set deposited on a transparent substrate, a rear electrode set, and a thin film laminate sandwiched between said front and rear electrode sets, said thin film laminate including at least a pair of insulating layers sandwiching a calcium thiogallate phosphor layer doped with cerium.
Dependencies are inferred from the claim text.